Non-quasineutral model of an equilibrium z - pinch

A radically new equilibrium of z-pinch is proposed, where at the scale r 0 ∼ √J 0 en e c / (J 0 - the current flowing inside the radius r 0 , n e - the electron density) the strong charge separation arises, which results in the radial electric field. In this equilibrium, the current is transported n...

Full description

Saved in:

Bibliographic Details
Published in:	2000 13th International Conference on High-Power Particle Beams pp. 478 - 481
Main Author:	Gordeev, A.V.
Format:	Conference Proceeding
Language:	English
Published:	IEEE 01-06-2000
Subjects:	Argon charge separation Force ion radial oscillation Ions Magnetic confinement magnetic Debye radius Microwave integrated circuits neck-type instability
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	A radically new equilibrium of z-pinch is proposed, where at the scale r 0 ∼ √J 0 en e c / (J 0 - the current flowing inside the radius r 0 , n e - the electron density) the strong charge separation arises, which results in the radial electric field. In this equilibrium, the current is transported near the axis at r≤r 0 by the drifting electrons, and at the z-pinch periphery on the scale c/ω pi - by the ions with the velocity v iz ∼ c (2ZeJ/m i c 3 ), where J - the total current of the z-pinch. In the nonquasineutral core of the z-pinch the radial «temperature» of the ions prove to be of the order of ZeJ 0 /c. The lifetime of the nonquasineutral region of the z-pinch is limited by the Coulomb collisions of the radially oscillating ions with electrons. For lack of the magnetic field «frozen-in» effect in ions at the nonquasineutral core the z-pinch instability of the neck-type is absent.